Description
As
you can see from the picture, we call that ventilation fan as
butterfly cone fan.
1.This fan adopts advanced frontward open system,butterfly
type,with two semicircle shutter doors, small wind
resistance,good air-tightness and high efficiency.
2.The cone part adopts new design,plug-type
connection.Bolts and nuts are used not so
many as before, which reduced the intensity of labor. The
appearance looks much more beautiful.
3.The belt tensioner device made of aluminum-magnesium alloy,long
service life.This device make the belt inside tight up and
effectively avoid the belt distortions in reverse direction to
prolong the belt life ,saving cost.
4.,Underthe help of the rubber sealing ring , the two semicircle shutter
doorsclose much more tight than before. Not all
fans work, the air could pass through the interspace
of non-working fans. This design could avoid this problem and
ensure air pass through the evaporative cooling pads or air inlet
only and greatly improve the fan efficiency,(compared with
different type of same size,this fan increase efficiency
****0%)
5.The fan
motor is installed on the top left corner, which
effectively protect it and avoid wind
resistance.
|
Model |
Blades Diameter
mm |
Blade rotational speed
(r/min) |
Motor rotational speed
r/min |
Air flow
m3/h |
Import
power
w |
Rated voltage
v |
High
mm |
Wide
mm |
Thick
mm |
|
DJF(e)***0 |
**0 |
**0 |
***0 |
****0 |
**0 |
**0 |
**0 |
**0 |
**0 |
|
DJF(e)****0 |
***0 |
**0 |
***0 |
****0 |
**0 |
**0 |
***0 |
***0 |
***0 |
|
DJF(e)****0 |
***0 |
**0 |
***0 |
****0 |
**0 |
**0 |
***0 |
***0 |
***0 |
|
DJF(e)****0 |
***0 |
**9 |
***0 |
****0 |
***0 |
**0 |
***0 |
***0 |
***0 |
